Many countries are rolling out COVID-19 vaccine booster shots, but there is no consensus among scientists that they are necessary and the World Health Organization wants the most vulnerable people worldwide to be fully vaccinated first.
- U.S. regulators on Nov. 19 expanded eligibility for booster shots to all fully-vaccinated adults.
Recent contracts with Pfizer/BioNTech and Moderna have included the potential for the bloc to buy booster shots. ** Morocco, which has administered the most doses in Africa, started giving a third dose beginning in October. The FDA authorized a third dose by Pfizer-BioNTech and Moderna Inc on Aug. 13 for people with compromised immune systems.
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